but i bet you he entered an arena which is under the grandmaster's rule and became the undefeated gladiator. thor contacts grandmaster to gain hulk's help, but must enter the ring to get TO hulk and get his help

It will be cool to see the Hulk fight Thor on Ragnork. I also wonder what happened to Thor's father since Loki is using an illusion to appear as Odin? I would like to see Loki team back up with Thor like they worked together in the second Thor movie. Looking forward to the Infinity War. And for Thanos to get all the Infinity stones will they have to kill off Vision since he has one of the stones on his forehead?